There are tons of discussions about these stereo techniques (RTF, NOS, XY, Decca tree, Blumlein, AB) but I did not see much with regard to the mix once used them after recording.

Example in XY, How are you securing microphones in a shock mounts from moving out of from position?

What are the pros con between ORTF and XY?

• How do you know which config to use?
• Is one better for solo, quartet, choirs, orchestra?
• How does crossing XY change the imaging vs the opposite in ORTF?
• Does X have to be above Y (or vise versa) and why?
• Do you use the same Cardioids for XY or ORTF or a?

Thanks!